Update:
I took the gearbox apart again and the cut-off leaver was misaligned. I compared it to the old shell and it was not sitting flush. I took the Dremel to the offending corner and removed some meat and now the cut-off leaver is sitting where it was supposed to be.
Put the box back together and I have the same problem...
I also made sure that the cross-pin was in as with everything else...
So I said “Fuck you gun!” hung it on the wall and that’s where it’s sitting.
It’s not a huge problem, in fact during games it’s in full auto anyway – it’s just knowing that it’s doing that is what’s bothering me...
Thanks for your help and any more ideas will be appreciated!
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